Hammond Power Solutions Inc. (HPS) is the North American stand-alone leader for the design and manufacture of high quality custom electrical dry-type transformers and related engineered magnetic devices.


HPS has developed a reputation as the most capable and broadest manufacturer of electrical dry-type transformers in the world. Their product database contains over one million designs ranging from the smallest electrical control transformers to electrical distribution transformers to the largest electrical dry-type transformers ever manufactured.

HPS offers a variety of electrical transformers and services to customers that no other transformer manufacturer can match. Contact your Brews sales representative for more information!

Featured Hammond Transformer Products

Energy Efficient Distribution Transformers

HPS offers three lines of energy efficient low voltage distribution transformers which meet or exceed the Canadian Energy Efficiency Regulations SOR/94-651 (and/or C802.2) efficiencies:

  • Energy Efficient General Purpose Transformers
  • Energy Efficient K-Factor Transformers
  • Energy Efficient Harmonic Mitigating Transformers

Low Voltage Lighting Transformers

For a cost effective approach to supply low voltage for Recreational, Lighting, Light Duty Industrial and Pool and Spa applications or for a general purpose load including actuating relays, bells, control and low voltage circuits. HPS single phase encapsulated (NEMA 3R) control transformers, with ratings from 50VA up to 5000VA in three voltage ratings, feature the newest technology and manufacturing processes.

Encapsulated Distribution Transformers

HPS has two unique Encapsulated Distribution Transformer lines:

  • HPS Titan series has been designed to operate in harsh environments and hazardous locations where safety is your priority, efficiency is a concern and the environment, location and application are key.
  • HPS Fortress is an innovative design that provides the ideal solution for commercial applications where quality, ease of installation, and low cost are key.


HPS three phase autotransformers are available for applications where small voltage corrections are necessary in a distribution system. They are frequently used as an economical alternative to three phase general purpose distribution transformers to adjust the supply voltage to match specific load requirements when load isolation from the supply line is not required. Autotransformers can be used as either a step-up or step-down transformer.

Control Transformers

Control transformers are isolation transformers designed to provide a high degree of secondary voltage stability (regulation) during a brief period of overload condition. Available in Open Core, Encapsulated Core, Enclosed and Enclosed Potted designs to fit any control application.

HPS offers Four lines of Control Transformers:

  • HPS Spartan® Industrial Open Core and Coil Control Transformers
  • HPS Imperator® Machine Tool Molded Control Transformers
  • HPS Fusion enclosed indoor Control Transformers
  • Q Series Enclosed Potted Control Transformers

Buck Boost Transformers

Buck-boost transformers offer an economical solution to the adjustment of line voltages that are slightly above or below normal. When a buck-boost transformer is connected as an autotransformer, only a portion of the load kVA is actually transformed. The majority of the load kVA is passed directly through to the source. For this reason a buck-boost transformer may be used to supply a much larger kVA load than is indicated on the nameplate. Buck-boost transformers can be used to adjust stable voltages only.

Line Reactors – RM Series

By choosing a HPS line reactor, many line problems can be eliminated. Additionally, performance, life expectancy and efficiency of both the motor and the drive itself are significantly enhanced.
HPS offers two lines of Line Reactors:

  • RM Series Line Reactors
  • RC Series DV/DT Filter Reactors

Energy Efficient Drive Isolation Transformers

HPS Drive Isolation Transformers are designed to meet the rugged demands of both AC and DC variable speed drives, and also provide the required voltage change. The separate primary and secondary windings provide electrical isolation between the incoming line and the SCR load. The windings are designed to withstand overcurrent of 150% of the rated load for 60 seconds or 200% of the rated load for 30 seconds.

Drive Isolation Transformers are sized to match standard motor horsepower and voltage ratings. Standard sizes range from 5 to 600 HP in six standard voltages and available in Standard and Energy Efficient designs.

Medium Voltage Transformers

HPS Dry-Type Medium Voltage (Power) Transformers are regarded for their high level of quality and service reliability that has become synonymous with HPS transformer products. With three phase ratings up to 34 MVA, 46 kV, 250 kV BIL and single phase to 5 MVA, we feature the newest technology and manufacturing processes.HPS Millennium™ energy efficient general purpose medium voltage distribution transformers are rated for 600 volts and up. They are designed for stepping down incoming higher voltage power to utilize voltages for commercial, institutional or industrial applications. The standard NEMA 3R ventilated construction is ideally suited for indoor or outdoor applications.

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